Nobody expects to be punched in the face by a man's beard, which is why the thug goes down so easy. The guy's built like a brick shithouse, so Samson doesn't bother to try and move him. Alleys in this neighbourhood, he won't be around long anyway.
The door's locked, but not for long. He gingerly plucks a single hair from his chin - it looks like a length of wire, and when he coaxes it into the lock it comes alive, wriggling and twisting to fit the pins. The door pops open. Samson checks his .45, and heads down the stairs.